<?php

class HomeworkEnum
{
    const HOMEWORK_NOT_PUBLISHED        = NULL; //没有作业
    const HOMEWORK_DRAFT                = 0;    //暂未发布
    const HOMEWORK_HAS_PUBLISHED        = 1;    //已经发布
    const HOMEWORK_PLANING_PUBLISHED    = 2;    //定时发布

    const HOMEWORK_PACKAGE              = 'homework_package'; //作业包

    const HOMEWORK_PERIOD               = 'homework_period';  //课程
}